Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1N⋯O2 | 0.84 (3) | 1.91 (3) | 2.624 (3) | 141 (3) |
| C12—H12B⋯O4A i | 0.99 | 2.54 | 3.532 (4) | 177 |
| C12—H12B⋯O4B i | 0.99 | 2.61 | 3.462 (8) | 144 |
Symmetry code: (i) 
.
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